pub trait FromCard: Sized {
// Required method
fn from_card(record: &Record) -> Option<Self>;
}Expand description
Convert a record’s value into a Rust type. The extension point behind
Header::get.
§Examples
let mut h = Header::new();
h.set("EXPTIME", 120.0).unwrap();
assert_eq!(f64::from_card(&h.cards()[0]), Some(120.0));Required Methods§
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".